<?php

class SiteController extends Controller
{
	/**
	 * Declares class-based actions.
	 */
	public function actions()
	{
		return array(
			// captcha action renders the CAPTCHA image displayed on the contact page
			'captcha'=>array(
				'class'=>'CCaptchaAction',
				'backColor'=>0xFFFFFF,
			),
			// page action renders "static" pages stored under 'protected/views/site/pages'
			// They can be accessed via: index.php?r=site/page&view=FileName
			'page'=>array(
				'class'=>'CViewAction',
			),
		);
	}

	/**
	 * This is the default 'index' action that is invoked
	 * when an action is not explicitly requested by users.
	 */
	public function actionIndex()
	{
		// renders the view file 'protected/views/site/index.php'
		// using the default layout 'protected/views/layouts/main.php'
		$this->render('index');
	}

	/**
	 * This is the action to handle external exceptions.
	 */
	public function actionError()
	{
		if($error=Yii::app()->errorHandler->error)
		{
			if(Yii::app()->request->isAjaxRequest)
				echo $error['warning'];
			else
				$this->render('error', $error);
		}
		
	}

	/**
	 * Displays the contact page
	 */
	public function actionContact()
	{
		$model=new ContactForm;
		if(isset($_POST['ContactForm']))
		{
			$model->attributes=$_POST['ContactForm'];
			if($model->validate())
			{
				$name='=?UTF-8?B?'.base64_encode($model->name).'?=';
				$subject='=?UTF-8?B?'.base64_encode($model->subject).'?=';
				$headers="From: $name <{$model->email}>\r\n".
					"Reply-To: {$model->email}\r\n".
					"MIME-Version: 1.0\r\n".
					"Content-type: text/plain; charset=UTF-8";

				mail(Yii::app()->params['adminEmail'],$subject,$model->body,$headers);
				Yii::app()->user->setFlash('contact','Thank you for contacting us. We will respond to you as soon as possible.');
				$this->refresh();
			}
		}
		$this->render('contact',array('model'=>$model));
	}

	/**
	 * Displays the login page
	 */
	public function actionLogin()
	{
		$model=new LoginForm;

		// if it is ajax validation request
		if(isset($_POST['ajax']) && $_POST['ajax']==='login-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}

		// collect user input data
		if(isset($_POST['LoginForm']))
		{
			$model->attributes=$_POST['LoginForm'];
			// validate user input and redirect to the previous page if valid
			if($model->validate() && $model->login());
				
				if (Yii::app()->user->checkAccess('admin')){
					$this->redirect(array('user/admin'));
			}
				else if (Yii::app()->user->checkAccess('alumni')){
					$this->redirect(array('user/view','id'=>Yii::app()->session['UserId']));
				}
				else if (Yii::app()->user->checkAccess('volunteer')){
					$this->redirect(array('user/view','id'=>Yii::app()->session['UserId']));
				}
				else if (Yii::app()->user->checkAccess('encoder')){
					$this->redirect(array('site/index'));
				}
		}
		// display the login form
		$this->render('login',array('model'=>$model));
	}

	
	    public function actionForgotpassword() 
    {
     $model=new User;
                if(isset($_POST['User']['Username']))
                {
                        $username =$_POST['User']['Username'];
                        $user=User::model()->findByAttributes(array('Username'=>$username));
                        if($user===null)
                                echo "Not existing";
                        else{
                                $newpassword = $this->randomPassword();
                                $salt = openssl_random_pseudo_bytes(22);
                                $salt = '$2a$%13$' . strtr($salt, array('_' => '.', '~' => '/'));
                                $password_hash = crypt($newpassword, $salt);
                                $user->Password = $password_hash;

                                $user->save();

                                //use 'contact' view from views/mail
                                $mail = new YiiMailer('newpassword', array('lastname'=>$user->profile->Lastname,'firstname'=>$user->profile->Firstname,'username' => $user->Username, 'password' => $newpassword));
                                //set properties
                                $mail->setFrom(Yii::app()->params['adminEmail']);
                                $mail->setSubject('DO NOT REPLY');
                                $mail->setTo($user->profile->Email);
                                //Send
                                if ($mail->send()) {
                                        Yii::app()->user->setFlash('contact','Thank you for contacting us. We will respond to you as soon as possible.');
                                } else {
                                        Yii::app()->user->setFlash('error','Error while sending email: '.$mail->getError());
                                }

                        }
                }
                $this->render('forgotpassword',array(
                        'model'=>$model,
                ));

    }


    private function randomPassword() {
                $characters = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789";
                $pass = array(); 
                $charactersLength = strlen($characters) - 1; 
                for ($i=0; $i<8; $i++) {
                        $n=rand(0, $charactersLength);
                        $pass[]=$characters[$n];
                }
                return implode($pass); 
        }
	

	
	/**
	 * Logs out the current user and redirect to homepage.
	 */
	public function actionLogout()
	{
		Yii::app()->user->logout();
		$this->redirect(Yii::app()->homeUrl);
	}
}